Scattered slice SHARD reconstruction for motion correction in multi-shell diffusion MRI

Daan Christiaens,Lucilio Cordero-Grande,Maximilian Pietsch,Jana Hutter,Anthony N. Price,Emer J. Hughes,Katy Vecchiato,Maria Deprez,A. David Edwards,Joseph V. Hajnal,J-Donald Tournier

NeuroImage（2021）

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摘要

•Subject motion in dMRI leads to a set of scattered slices with unique contrast.•We introduce a slice-to-volume reconstruction framework for multi-shell HARDI data•Based on a data-driven representation as spherical harmonics and radial decomposition (SHARD).•The method is evaluated in test-retest scans and in the neonatal dHCP cohort.•Results show robust reconstruction in severely motion-corrupted scans.

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关键词

Diffusion MRI,Multi-shell,Motion correction,Slice-to-volume reconstruction,Neonatal imaging

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